apps/ocsp.c

   1 /* ocsp.c */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58 #ifndef OPENSSL_NO_OCSP
  59
  60 #ifdef OPENSSL_SYS_VMS
  61 #define _XOPEN_SOURCE_EXTENDED  /* So fd_set and friends get properly defined
  62                                    on OpenVMS */
  63 #endif
  64
  65 #define USE_SOCKETS
  66
  67 #include <stdio.h>
  68 #include <stdlib.h>
  69 #include <string.h>
  70 #include <time.h>
  71 #include "apps.h" /* needs to be included before the openssl headers! */
  72 #include <openssl/e_os2.h>
  73 #include <openssl/crypto.h>
  74 #include <openssl/err.h>
  75 #include <openssl/ssl.h>
  76 #include <openssl/evp.h>
  77 #include <openssl/bn.h>
  78
  79 #if defined(NETWARE_CLIB)
  80 #  ifdef NETWARE_BSDSOCK
  81 #    include <sys/socket.h>
  82 #    include <sys/bsdskt.h>
  83 #  else
  84 #    include <novsock2.h>
  85 #  endif
  86 #elif defined(NETWARE_LIBC)
  87 #  ifdef NETWARE_BSDSOCK
  88 #    include <sys/select.h>
  89 #  else
  90 #    include <novsock2.h>
  91 #  endif
  92 #endif
  93
  94 /* Maximum leeway in validity period: default 5 minutes */
  95 #define MAX_VALIDITY_PERIOD     (5 * 60)
  96
  97 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md, X509 *issuer,
  98                                 STACK_OF(OCSP_CERTID) *ids);
  99 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, const EVP_MD * cert_id_md, X509 *issuer,
 100                                 STACK_OF(OCSP_CERTID) *ids);
 101 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 102                               STACK_OF(OPENSSL_STRING) *names,
 103                               STACK_OF(OCSP_CERTID) *ids, long nsec,
 104                               long maxage);
 105
 106 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
 107                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
 108                         STACK_OF(X509) *rother, unsigned long flags,
 109                         int nmin, int ndays);
 110
 111 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
 112 static BIO *init_responder(char *port);
 113 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
 114 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
 115 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
 116                                 OCSP_REQUEST *req, int req_timeout);
 117
 118 #undef PROG
 119 #define PROG ocsp_main
 120
 121 int MAIN(int, char **);
 122
 123 int MAIN(int argc, char **argv)
 124         {
 125         ENGINE *e = NULL;
 126         char **args;
 127         char *host = NULL, *port = NULL, *path = "/";
 128         char *reqin = NULL, *respin = NULL;
 129         char *reqout = NULL, *respout = NULL;
 130         char *signfile = NULL, *keyfile = NULL;
 131         char *rsignfile = NULL, *rkeyfile = NULL;
 132         char *outfile = NULL;
 133         int add_nonce = 1, noverify = 0, use_ssl = -1;
 134         OCSP_REQUEST *req = NULL;
 135         OCSP_RESPONSE *resp = NULL;
 136         OCSP_BASICRESP *bs = NULL;
 137         X509 *issuer = NULL, *cert = NULL;
 138         X509 *signer = NULL, *rsigner = NULL;
 139         EVP_PKEY *key = NULL, *rkey = NULL;
 140         BIO *acbio = NULL, *cbio = NULL;
 141         BIO *derbio = NULL;
 142         BIO *out = NULL;
 143         int req_timeout = -1;
 144         int req_text = 0, resp_text = 0;
 145         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 146         char *CAfile = NULL, *CApath = NULL;
 147         X509_STORE *store = NULL;
 148         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 149         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 150         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 151         int ret = 1;
 152         int accept_count = -1;
 153         int badarg = 0;
 154         int i;
 155         int ignore_err = 0;
 156         STACK_OF(OPENSSL_STRING) *reqnames = NULL;
 157         STACK_OF(OCSP_CERTID) *ids = NULL;
 158
 159         X509 *rca_cert = NULL;
 160         char *ridx_filename = NULL;
 161         char *rca_filename = NULL;
 162         CA_DB *rdb = NULL;
 163         int nmin = 0, ndays = -1;
 164         const EVP_MD *cert_id_md = NULL;
 165
 166         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 167
 168         if (!load_config(bio_err, NULL))
 169                 goto end;
 170         SSL_load_error_strings();
 171         OpenSSL_add_ssl_algorithms();
 172         args = argv + 1;
 173         reqnames = sk_OPENSSL_STRING_new_null();
 174         ids = sk_OCSP_CERTID_new_null();
 175         while (!badarg && *args && *args[0] == '-')
 176                 {
 177                 if (!strcmp(*args, "-out"))
 178                         {
 179                         if (args[1])
 180                                 {
 181                                 args++;
 182                                 outfile = *args;
 183                                 }
 184                         else badarg = 1;
 185                         }
 186                 else if (!strcmp(*args, "-timeout"))
 187                         {
 188                         if (args[1])
 189                                 {
 190                                 args++;
 191                                 req_timeout = atol(*args);
 192                                 if (req_timeout < 0)
 193                                         {
 194                                         BIO_printf(bio_err,
 195                                                 "Illegal timeout value %s\n",
 196                                                 *args);
 197                                         badarg = 1;
 198                                         }
 199                                 }
 200                         else badarg = 1;
 201                         }
 202                 else if (!strcmp(*args, "-url"))
 203                         {
 204                         if (args[1])
 205                                 {
 206                                 args++;
 207                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 208                                         {
 209                                         BIO_printf(bio_err, "Error parsing URL\n");
 210                                         badarg = 1;
 211                                         }
 212                                 }
 213                         else badarg = 1;
 214                         }
 215                 else if (!strcmp(*args, "-host"))
 216                         {
 217                         if (args[1])
 218                                 {
 219                                 args++;
 220                                 host = *args;
 221                                 }
 222                         else badarg = 1;
 223                         }
 224                 else if (!strcmp(*args, "-port"))
 225                         {
 226                         if (args[1])
 227                                 {
 228                                 args++;
 229                                 port = *args;
 230                                 }
 231                         else badarg = 1;
 232                         }
 233                 else if (!strcmp(*args, "-ignore_err"))
 234                         ignore_err = 1;
 235                 else if (!strcmp(*args, "-noverify"))
 236                         noverify = 1;
 237                 else if (!strcmp(*args, "-nonce"))
 238                         add_nonce = 2;
 239                 else if (!strcmp(*args, "-no_nonce"))
 240                         add_nonce = 0;
 241                 else if (!strcmp(*args, "-resp_no_certs"))
 242                         rflags |= OCSP_NOCERTS;
 243                 else if (!strcmp(*args, "-resp_key_id"))
 244                         rflags |= OCSP_RESPID_KEY;
 245                 else if (!strcmp(*args, "-no_certs"))
 246                         sign_flags |= OCSP_NOCERTS;
 247                 else if (!strcmp(*args, "-no_signature_verify"))
 248                         verify_flags |= OCSP_NOSIGS;
 249                 else if (!strcmp(*args, "-no_cert_verify"))
 250                         verify_flags |= OCSP_NOVERIFY;
 251                 else if (!strcmp(*args, "-no_chain"))
 252                         verify_flags |= OCSP_NOCHAIN;
 253                 else if (!strcmp(*args, "-no_cert_checks"))
 254                         verify_flags |= OCSP_NOCHECKS;
 255                 else if (!strcmp(*args, "-no_explicit"))
 256                         verify_flags |= OCSP_NOEXPLICIT;
 257                 else if (!strcmp(*args, "-trust_other"))
 258                         verify_flags |= OCSP_TRUSTOTHER;
 259                 else if (!strcmp(*args, "-no_intern"))
 260                         verify_flags |= OCSP_NOINTERN;
 261                 else if (!strcmp(*args, "-text"))
 262                         {
 263                         req_text = 1;
 264                         resp_text = 1;
 265                         }
 266                 else if (!strcmp(*args, "-req_text"))
 267                         req_text = 1;
 268                 else if (!strcmp(*args, "-resp_text"))
 269                         resp_text = 1;
 270                 else if (!strcmp(*args, "-reqin"))
 271                         {
 272                         if (args[1])
 273                                 {
 274                                 args++;
 275                                 reqin = *args;
 276                                 }
 277                         else badarg = 1;
 278                         }
 279                 else if (!strcmp(*args, "-respin"))
 280                         {
 281                         if (args[1])
 282                                 {
 283                                 args++;
 284                                 respin = *args;
 285                                 }
 286                         else badarg = 1;
 287                         }
 288                 else if (!strcmp(*args, "-signer"))
 289                         {
 290                         if (args[1])
 291                                 {
 292                                 args++;
 293                                 signfile = *args;
 294                                 }
 295                         else badarg = 1;
 296                         }
 297                 else if (!strcmp (*args, "-VAfile"))
 298                         {
 299                         if (args[1])
 300                                 {
 301                                 args++;
 302                                 verify_certfile = *args;
 303                                 verify_flags |= OCSP_TRUSTOTHER;
 304                                 }
 305                         else badarg = 1;
 306                         }
 307                 else if (!strcmp(*args, "-sign_other"))
 308                         {
 309                         if (args[1])
 310                                 {
 311                                 args++;
 312                                 sign_certfile = *args;
 313                                 }
 314                         else badarg = 1;
 315                         }
 316                 else if (!strcmp(*args, "-verify_other"))
 317                         {
 318                         if (args[1])
 319                                 {
 320                                 args++;
 321                                 verify_certfile = *args;
 322                                 }
 323                         else badarg = 1;
 324                         }
 325                 else if (!strcmp (*args, "-CAfile"))
 326                         {
 327                         if (args[1])
 328                                 {
 329                                 args++;
 330                                 CAfile = *args;
 331                                 }
 332                         else badarg = 1;
 333                         }
 334                 else if (!strcmp (*args, "-CApath"))
 335                         {
 336                         if (args[1])
 337                                 {
 338                                 args++;
 339                                 CApath = *args;
 340                                 }
 341                         else badarg = 1;
 342                         }
 343                 else if (!strcmp (*args, "-validity_period"))
 344                         {
 345                         if (args[1])
 346                                 {
 347                                 args++;
 348                                 nsec = atol(*args);
 349                                 if (nsec < 0)
 350                                         {
 351                                         BIO_printf(bio_err,
 352                                                 "Illegal validity period %s\n",
 353                                                 *args);
 354                                         badarg = 1;
 355                                         }
 356                                 }
 357                         else badarg = 1;
 358                         }
 359                 else if (!strcmp (*args, "-status_age"))
 360                         {
 361                         if (args[1])
 362                                 {
 363                                 args++;
 364                                 maxage = atol(*args);
 365                                 if (maxage < 0)
 366                                         {
 367                                         BIO_printf(bio_err,
 368                                                 "Illegal validity age %s\n",
 369                                                 *args);
 370                                         badarg = 1;
 371                                         }
 372                                 }
 373                         else badarg = 1;
 374                         }
 375                  else if (!strcmp(*args, "-signkey"))
 376                         {
 377                         if (args[1])
 378                                 {
 379                                 args++;
 380                                 keyfile = *args;
 381                                 }
 382                         else badarg = 1;
 383                         }
 384                 else if (!strcmp(*args, "-reqout"))
 385                         {
 386                         if (args[1])
 387                                 {
 388                                 args++;
 389                                 reqout = *args;
 390                                 }
 391                         else badarg = 1;
 392                         }
 393                 else if (!strcmp(*args, "-respout"))
 394                         {
 395                         if (args[1])
 396                                 {
 397                                 args++;
 398                                 respout = *args;
 399                                 }
 400                         else badarg = 1;
 401                         }
 402                  else if (!strcmp(*args, "-path"))
 403                         {
 404                         if (args[1])
 405                                 {
 406                                 args++;
 407                                 path = *args;
 408                                 }
 409                         else badarg = 1;
 410                         }
 411                 else if (!strcmp(*args, "-issuer"))
 412                         {
 413                         if (args[1])
 414                                 {
 415                                 args++;
 416                                 X509_free(issuer);
 417                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 418                                         NULL, e, "issuer certificate");
 419                                 if(!issuer) goto end;
 420                                 }
 421                         else badarg = 1;
 422                         }
 423                 else if (!strcmp (*args, "-cert"))
 424                         {
 425                         if (args[1])
 426                                 {
 427                                 args++;
 428                                 X509_free(cert);
 429                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 430                                         NULL, e, "certificate");
 431                                 if(!cert) goto end;
 432                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 433                                 if(!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
 434                                         goto end;
 435                                 if(!sk_OPENSSL_STRING_push(reqnames, *args))
 436                                         goto end;
 437                                 }
 438                         else badarg = 1;
 439                         }
 440                 else if (!strcmp(*args, "-serial"))
 441                         {
 442                         if (args[1])
 443                                 {
 444                                 args++;
 445                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 446                                 if(!add_ocsp_serial(&req, *args, cert_id_md, issuer, ids))
 447                                         goto end;
 448                                 if(!sk_OPENSSL_STRING_push(reqnames, *args))
 449                                         goto end;
 450                                 }
 451                         else badarg = 1;
 452                         }
 453                 else if (!strcmp(*args, "-index"))
 454                         {
 455                         if (args[1])
 456                                 {
 457                                 args++;
 458                                 ridx_filename = *args;
 459                                 }
 460                         else badarg = 1;
 461                         }
 462                 else if (!strcmp(*args, "-CA"))
 463                         {
 464                         if (args[1])
 465                                 {
 466                                 args++;
 467                                 rca_filename = *args;
 468                                 }
 469                         else badarg = 1;
 470                         }
 471                 else if (!strcmp (*args, "-nmin"))
 472                         {
 473                         if (args[1])
 474                                 {
 475                                 args++;
 476                                 nmin = atol(*args);
 477                                 if (nmin < 0)
 478                                         {
 479                                         BIO_printf(bio_err,
 480                                                 "Illegal update period %s\n",
 481                                                 *args);
 482                                         badarg = 1;
 483                                         }
 484                                 }
 485                                 if (ndays == -1)
 486                                         ndays = 0;
 487                         else badarg = 1;
 488                         }
 489                 else if (!strcmp (*args, "-nrequest"))
 490                         {
 491                         if (args[1])
 492                                 {
 493                                 args++;
 494                                 accept_count = atol(*args);
 495                                 if (accept_count < 0)
 496                                         {
 497                                         BIO_printf(bio_err,
 498                                                 "Illegal accept count %s\n",
 499                                                 *args);
 500                                         badarg = 1;
 501                                         }
 502                                 }
 503                         else badarg = 1;
 504                         }
 505                 else if (!strcmp (*args, "-ndays"))
 506                         {
 507                         if (args[1])
 508                                 {
 509                                 args++;
 510                                 ndays = atol(*args);
 511                                 if (ndays < 0)
 512                                         {
 513                                         BIO_printf(bio_err,
 514                                                 "Illegal update period %s\n",
 515                                                 *args);
 516                                         badarg = 1;
 517                                         }
 518                                 }
 519                         else badarg = 1;
 520                         }
 521                 else if (!strcmp(*args, "-rsigner"))
 522                         {
 523                         if (args[1])
 524                                 {
 525                                 args++;
 526                                 rsignfile = *args;
 527                                 }
 528                         else badarg = 1;
 529                         }
 530                 else if (!strcmp(*args, "-rkey"))
 531                         {
 532                         if (args[1])
 533                                 {
 534                                 args++;
 535                                 rkeyfile = *args;
 536                                 }
 537                         else badarg = 1;
 538                         }
 539                 else if (!strcmp(*args, "-rother"))
 540                         {
 541                         if (args[1])
 542                                 {
 543                                 args++;
 544                                 rcertfile = *args;
 545                                 }
 546                         else badarg = 1;
 547                         }
 548                 else if ((cert_id_md = EVP_get_digestbyname((*args)+1))==NULL)
 549                         {
 550                         badarg = 1;
 551                         }
 552                 args++;
 553                 }
 554
 555         /* Have we anything to do? */
 556         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 557
 558         if (badarg)
 559                 {
 560                 BIO_printf (bio_err, "OCSP utility\n");
 561                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 562                 BIO_printf (bio_err, "where options are\n");
 563                 BIO_printf (bio_err, "-out file          output filename\n");
 564                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 565                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 566                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 567                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 568                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 569                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 570                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 571                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 572                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 573                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 574                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 575                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 576                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 577                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 578                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 579                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 580                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 581                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 582                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 583                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 584                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 585                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 586                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 587                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 588                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 589                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 590                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 591                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 592                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 593                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 594                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 595                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 596                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 597                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 598                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 599                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 600                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 601                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 602                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 603                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 604                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 605                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 606                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 607                 BIO_printf (bio_err, "-<dgst alg>     use specified digest in the request");
 608                 goto end;
 609                 }
 610
 611         if(outfile) out = BIO_new_file(outfile, "w");
 612         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 613
 614         if(!out)
 615                 {
 616                 BIO_printf(bio_err, "Error opening output file\n");
 617                 goto end;
 618                 }
 619
 620         if (!req && (add_nonce != 2)) add_nonce = 0;
 621
 622         if (!req && reqin)
 623                 {
 624                 derbio = BIO_new_file(reqin, "rb");
 625                 if (!derbio)
 626                         {
 627                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 628                         goto end;
 629                         }
 630                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 631                 BIO_free(derbio);
 632                 if(!req)
 633                         {
 634                         BIO_printf(bio_err, "Error reading OCSP request\n");
 635                         goto end;
 636                         }
 637                 }
 638
 639         if (!req && port)
 640                 {
 641                 acbio = init_responder(port);
 642                 if (!acbio)
 643                         goto end;
 644                 }
 645
 646         if (rsignfile && !rdb)
 647                 {
 648                 if (!rkeyfile) rkeyfile = rsignfile;
 649                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 650                         NULL, e, "responder certificate");
 651                 if (!rsigner)
 652                         {
 653                         BIO_printf(bio_err, "Error loading responder certificate\n");
 654                         goto end;
 655                         }
 656                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 657                         NULL, e, "CA certificate");
 658                 if (rcertfile)
 659                         {
 660                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 661                                 NULL, e, "responder other certificates");
 662                         if (!rother) goto end;
 663                         }
 664                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 665                         "responder private key");
 666                 if (!rkey)
 667                         goto end;
 668                 }
 669         if(acbio)
 670                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 671
 672         redo_accept:
 673
 674         if (acbio)
 675                 {
 676                 if (!do_responder(&req, &cbio, acbio, port))
 677                         goto end;
 678                 if (!req)
 679                         {
 680                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 681                         send_ocsp_response(cbio, resp);
 682                         goto done_resp;
 683                         }
 684                 }
 685
 686         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 687                 {
 688                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 689                 goto end;
 690                 }
 691
 692         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 693
 694         if (signfile)
 695                 {
 696                 if (!keyfile) keyfile = signfile;
 697                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 698                         NULL, e, "signer certificate");
 699                 if (!signer)
 700                         {
 701                         BIO_printf(bio_err, "Error loading signer certificate\n");
 702                         goto end;
 703                         }
 704                 if (sign_certfile)
 705                         {
 706                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 707                                 NULL, e, "signer certificates");
 708                         if (!sign_other) goto end;
 709                         }
 710                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 711                         "signer private key");
 712                 if (!key)
 713                         goto end;
 714
 715                 if (!OCSP_request_sign(req, signer, key, NULL, sign_other, sign_flags))
 716                         {
 717                         BIO_printf(bio_err, "Error signing OCSP request\n");
 718                         goto end;
 719                         }
 720                 }
 721
 722         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 723
 724         if (reqout)
 725                 {
 726                 derbio = BIO_new_file(reqout, "wb");
 727                 if(!derbio)
 728                         {
 729                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 730                         goto end;
 731                         }
 732                 i2d_OCSP_REQUEST_bio(derbio, req);
 733                 BIO_free(derbio);
 734                 }
 735
 736         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 737                 {
 738                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 739                 goto end;
 740                 }
 741
 742         if (ridx_filename && !rdb)
 743                 {
 744                 rdb = load_index(ridx_filename, NULL);
 745                 if (!rdb) goto end;
 746                 if (!index_index(rdb)) goto end;
 747                 }
 748
 749         if (rdb)
 750                 {
 751                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 752                 if (cbio)
 753                         send_ocsp_response(cbio, resp);
 754                 }
 755         else if (host)
 756                 {
 757 #ifndef OPENSSL_NO_SOCK
 758                 resp = process_responder(bio_err, req, host, path,
 759                                                 port, use_ssl, req_timeout);
 760                 if (!resp)
 761                         goto end;
 762 #else
 763                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 764                 goto end;
 765 #endif
 766                 }
 767         else if (respin)
 768                 {
 769                 derbio = BIO_new_file(respin, "rb");
 770                 if (!derbio)
 771                         {
 772                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 773                         goto end;
 774                         }
 775                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 776                 BIO_free(derbio);
 777                 if(!resp)
 778                         {
 779                         BIO_printf(bio_err, "Error reading OCSP response\n");
 780                         goto end;
 781                         }
 782
 783                 }
 784         else
 785                 {
 786                 ret = 0;
 787                 goto end;
 788                 }
 789
 790         done_resp:
 791
 792         if (respout)
 793                 {
 794                 derbio = BIO_new_file(respout, "wb");
 795                 if(!derbio)
 796                         {
 797                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 798                         goto end;
 799                         }
 800                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 801                 BIO_free(derbio);
 802                 }
 803
 804         i = OCSP_response_status(resp);
 805
 806         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 807                 {
 808                 BIO_printf(out, "Responder Error: %s (%d)\n",
 809                                 OCSP_response_status_str(i), i);
 810                 if (ignore_err)
 811                         goto redo_accept;
 812                 ret = 0;
 813                 goto end;
 814                 }
 815
 816         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 817
 818         /* If running as responder don't verify our own response */
 819         if (cbio)
 820                 {
 821                 if (accept_count > 0)
 822                         accept_count--;
 823                 /* Redo if more connections needed */
 824                 if (accept_count)
 825                         {
 826                         BIO_free_all(cbio);
 827                         cbio = NULL;
 828                         OCSP_REQUEST_free(req);
 829                         req = NULL;
 830                         OCSP_RESPONSE_free(resp);
 831                         resp = NULL;
 832                         goto redo_accept;
 833                         }
 834                 goto end;
 835                 }
 836
 837         if (!store)
 838                 store = setup_verify(bio_err, CAfile, CApath);
 839         if (!store)
 840                 goto end;
 841         if (verify_certfile)
 842                 {
 843                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 844                         NULL, e, "validator certificate");
 845                 if (!verify_other) goto end;
 846                 }
 847
 848         bs = OCSP_response_get1_basic(resp);
 849
 850         if (!bs)
 851                 {
 852                 BIO_printf(bio_err, "Error parsing response\n");
 853                 goto end;
 854                 }
 855
 856         if (!noverify)
 857                 {
 858                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 859                         {
 860                         if (i == -1)
 861                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 862                         else
 863                                 {
 864                                 BIO_printf(bio_err, "Nonce Verify error\n");
 865                                 goto end;
 866                                 }
 867                         }
 868
 869                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 870                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 871
 872                 if(i <= 0)
 873                         {
 874                         BIO_printf(bio_err, "Response Verify Failure\n");
 875                         ERR_print_errors(bio_err);
 876                         }
 877                 else
 878                         BIO_printf(bio_err, "Response verify OK\n");
 879
 880                 }
 881
 882         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 883                 goto end;
 884
 885         ret = 0;
 886
 887 end:
 888         ERR_print_errors(bio_err);
 889         X509_free(signer);
 890         X509_STORE_free(store);
 891         EVP_PKEY_free(key);
 892         EVP_PKEY_free(rkey);
 893         X509_free(issuer);
 894         X509_free(cert);
 895         X509_free(rsigner);
 896         X509_free(rca_cert);
 897         free_index(rdb);
 898         BIO_free_all(cbio);
 899         BIO_free_all(acbio);
 900         BIO_free(out);
 901         OCSP_REQUEST_free(req);
 902         OCSP_RESPONSE_free(resp);
 903         OCSP_BASICRESP_free(bs);
 904         sk_OPENSSL_STRING_free(reqnames);
 905         sk_OCSP_CERTID_free(ids);
 906         sk_X509_pop_free(sign_other, X509_free);
 907         sk_X509_pop_free(verify_other, X509_free);
 908
 909         if (use_ssl != -1)
 910                 {
 911                 OPENSSL_free(host);
 912                 OPENSSL_free(port);
 913                 OPENSSL_free(path);
 914                 }
 915
 916         OPENSSL_EXIT(ret);
 917 }
 918
 919 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md,X509 *issuer,
 920                                 STACK_OF(OCSP_CERTID) *ids)
 921         {
 922         OCSP_CERTID *id;
 923         if(!issuer)
 924                 {
 925                 BIO_printf(bio_err, "No issuer certificate specified\n");
 926                 return 0;
 927                 }
 928         if(!*req) *req = OCSP_REQUEST_new();
 929         if(!*req) goto err;
 930         id = OCSP_cert_to_id(cert_id_md, cert, issuer);
 931         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 932         if(!OCSP_request_add0_id(*req, id)) goto err;
 933         return 1;
 934
 935         err:
 936         BIO_printf(bio_err, "Error Creating OCSP request\n");
 937         return 0;
 938         }
 939
 940 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,const EVP_MD *cert_id_md, X509 *issuer,
 941                                 STACK_OF(OCSP_CERTID) *ids)
 942         {
 943         OCSP_CERTID *id;
 944         X509_NAME *iname;
 945         ASN1_BIT_STRING *ikey;
 946         ASN1_INTEGER *sno;
 947         if(!issuer)
 948                 {
 949                 BIO_printf(bio_err, "No issuer certificate specified\n");
 950                 return 0;
 951                 }
 952         if(!*req) *req = OCSP_REQUEST_new();
 953         if(!*req) goto err;
 954         iname = X509_get_subject_name(issuer);
 955         ikey = X509_get0_pubkey_bitstr(issuer);
 956         sno = s2i_ASN1_INTEGER(NULL, serial);
 957         if(!sno)
 958                 {
 959                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 960                 return 0;
 961                 }
 962         id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
 963         ASN1_INTEGER_free(sno);
 964         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 965         if(!OCSP_request_add0_id(*req, id)) goto err;
 966         return 1;
 967
 968         err:
 969         BIO_printf(bio_err, "Error Creating OCSP request\n");
 970         return 0;
 971         }
 972
 973 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 974                               STACK_OF(OPENSSL_STRING) *names,
 975                               STACK_OF(OCSP_CERTID) *ids, long nsec,
 976                               long maxage)
 977         {
 978         OCSP_CERTID *id;
 979         char *name;
 980         int i;
 981
 982         int status, reason;
 983
 984         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 985
 986         if (!bs || !req || !sk_OPENSSL_STRING_num(names) || !sk_OCSP_CERTID_num(ids))
 987                 return 1;
 988
 989         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 990                 {
 991                 id = sk_OCSP_CERTID_value(ids, i);
 992                 name = sk_OPENSSL_STRING_value(names, i);
 993                 BIO_printf(out, "%s: ", name);
 994
 995                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 996                                         &rev, &thisupd, &nextupd))
 997                         {
 998                         BIO_puts(out, "ERROR: No Status found.\n");
 999                         continue;
1000                         }
1001
1002                 /* Check validity: if invalid write to output BIO so we
1003                  * know which response this refers to.
1004                  */
1005                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
1006                         {
1007                         BIO_puts(out, "WARNING: Status times invalid.\n");
1008                         ERR_print_errors(out);
1009                         }
1010                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
1011
1012                 BIO_puts(out, "\tThis Update: ");
1013                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1014                 BIO_puts(out, "\n");
1015
1016                 if(nextupd)
1017                         {
1018                         BIO_puts(out, "\tNext Update: ");
1019                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1020                         BIO_puts(out, "\n");
1021                         }
1022
1023                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1024                         continue;
1025
1026                 if (reason != -1)
1027                         BIO_printf(out, "\tReason: %s\n",
1028                                 OCSP_crl_reason_str(reason));
1029
1030                 BIO_puts(out, "\tRevocation Time: ");
1031                 ASN1_GENERALIZEDTIME_print(out, rev);
1032                 BIO_puts(out, "\n");
1033                 }
1034
1035         return 1;
1036         }
1037
1038
1039 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1040                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1041                         STACK_OF(X509) *rother, unsigned long flags,
1042                         int nmin, int ndays)
1043         {
1044         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1045         OCSP_CERTID *cid, *ca_id = NULL;
1046         OCSP_BASICRESP *bs = NULL;
1047         int i, id_count, ret = 1;
1048
1049         id_count = OCSP_request_onereq_count(req);
1050
1051         if (id_count <= 0)
1052                 {
1053                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1054                 goto end;
1055                 }
1056
1057
1058         bs = OCSP_BASICRESP_new();
1059         thisupd = X509_gmtime_adj(NULL, 0);
1060         if (ndays != -1)
1061                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1062
1063         /* Examine each certificate id in the request */
1064         for (i = 0; i < id_count; i++)
1065                 {
1066                 OCSP_ONEREQ *one;
1067                 ASN1_INTEGER *serial;
1068                 char **inf;
1069                 ASN1_OBJECT *cert_id_md_oid;
1070                 const EVP_MD *cert_id_md;
1071                 one = OCSP_request_onereq_get0(req, i);
1072                 cid = OCSP_onereq_get0_id(one);
1073
1074                 OCSP_id_get0_info(NULL,&cert_id_md_oid, NULL,NULL, cid);
1075
1076                 cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);
1077                 if (! cert_id_md)
1078                         {
1079                         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
1080                                 NULL);
1081                                 goto end;
1082                         }
1083                 if (ca_id) OCSP_CERTID_free(ca_id);
1084                 ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
1085
1086                 /* Is this request about our CA? */
1087                 if (OCSP_id_issuer_cmp(ca_id, cid))
1088                         {
1089                         OCSP_basic_add1_status(bs, cid,
1090                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1091                                                 0, NULL,
1092                                                 thisupd, nextupd);
1093                         continue;
1094                         }
1095                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1096                 inf = lookup_serial(db, serial);
1097                 if (!inf)
1098                         OCSP_basic_add1_status(bs, cid,
1099                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1100                                                 0, NULL,
1101                                                 thisupd, nextupd);
1102                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1103                         OCSP_basic_add1_status(bs, cid,
1104                                                 V_OCSP_CERTSTATUS_GOOD,
1105                                                 0, NULL,
1106                                                 thisupd, nextupd);
1107                 else if (inf[DB_type][0] == DB_TYPE_REV)
1108                         {
1109                         ASN1_OBJECT *inst = NULL;
1110                         ASN1_TIME *revtm = NULL;
1111                         ASN1_GENERALIZEDTIME *invtm = NULL;
1112                         OCSP_SINGLERESP *single;
1113                         int reason = -1;
1114                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1115                         single = OCSP_basic_add1_status(bs, cid,
1116                                                 V_OCSP_CERTSTATUS_REVOKED,
1117                                                 reason, revtm,
1118                                                 thisupd, nextupd);
1119                         if (invtm)
1120                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1121                         else if (inst)
1122                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1123                         ASN1_OBJECT_free(inst);
1124                         ASN1_TIME_free(revtm);
1125                         ASN1_GENERALIZEDTIME_free(invtm);
1126                         }
1127                 }
1128
1129         OCSP_copy_nonce(bs, req);
1130
1131         OCSP_basic_sign(bs, rcert, rkey, NULL, rother, flags);
1132
1133         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1134
1135         end:
1136         ASN1_TIME_free(thisupd);
1137         ASN1_TIME_free(nextupd);
1138         OCSP_CERTID_free(ca_id);
1139         OCSP_BASICRESP_free(bs);
1140         return ret;
1141
1142         }
1143
1144 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1145         {
1146         int i;
1147         BIGNUM *bn = NULL;
1148         char *itmp, *row[DB_NUMBER],**rrow;
1149         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1150         bn = ASN1_INTEGER_to_BN(ser,NULL);
1151         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1152         if (BN_is_zero(bn))
1153                 itmp = BUF_strdup("00");
1154         else
1155                 itmp = BN_bn2hex(bn);
1156         row[DB_serial] = itmp;
1157         BN_free(bn);
1158         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1159         OPENSSL_free(itmp);
1160         return rrow;
1161         }
1162
1163 /* Quick and dirty OCSP server: read in and parse input request */
1164
1165 static BIO *init_responder(char *port)
1166         {
1167         BIO *acbio = NULL, *bufbio = NULL;
1168         bufbio = BIO_new(BIO_f_buffer());
1169         if (!bufbio)
1170                 goto err;
1171 #ifndef OPENSSL_NO_SOCK
1172         acbio = BIO_new_accept(port);
1173 #else
1174         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1175 #endif
1176         if (!acbio)
1177                 goto err;
1178         BIO_set_accept_bios(acbio, bufbio);
1179         bufbio = NULL;
1180
1181         if (BIO_do_accept(acbio) <= 0)
1182                 {
1183                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1184                         ERR_print_errors(bio_err);
1185                         goto err;
1186                 }
1187
1188         return acbio;
1189
1190         err:
1191         BIO_free_all(acbio);
1192         BIO_free(bufbio);
1193         return NULL;
1194         }
1195
1196 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1197         {
1198         int have_post = 0, len;
1199         OCSP_REQUEST *req = NULL;
1200         char inbuf[1024];
1201         BIO *cbio = NULL;
1202
1203         if (BIO_do_accept(acbio) <= 0)
1204                 {
1205                         BIO_printf(bio_err, "Error accepting connection\n");
1206                         ERR_print_errors(bio_err);
1207                         return 0;
1208                 }
1209
1210         cbio = BIO_pop(acbio);
1211         *pcbio = cbio;
1212
1213         for(;;)
1214                 {
1215                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1216                 if (len <= 0)
1217                         return 1;
1218                 /* Look for "POST" signalling start of query */
1219                 if (!have_post)
1220                         {
1221                         if(strncmp(inbuf, "POST", 4))
1222                                 {
1223                                 BIO_printf(bio_err, "Invalid request\n");
1224                                 return 1;
1225                                 }
1226                         have_post = 1;
1227                         }
1228                 /* Look for end of headers */
1229                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1230                         break;
1231                 }
1232
1233         /* Try to read OCSP request */
1234
1235         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1236
1237         if (!req)
1238                 {
1239                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1240                 ERR_print_errors(bio_err);
1241                 }
1242
1243         *preq = req;
1244
1245         return 1;
1246
1247         }
1248
1249 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1250         {
1251         char http_resp[] =
1252                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1253                 "Content-Length: %d\r\n\r\n";
1254         if (!cbio)
1255                 return 0;
1256         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1257         i2d_OCSP_RESPONSE_bio(cbio, resp);
1258         (void)BIO_flush(cbio);
1259         return 1;
1260         }
1261
1262 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1263                                 OCSP_REQUEST *req, int req_timeout)
1264         {
1265         int fd;
1266         int rv;
1267         OCSP_REQ_CTX *ctx = NULL;
1268         OCSP_RESPONSE *rsp = NULL;
1269         fd_set confds;
1270         struct timeval tv;
1271
1272         if (req_timeout != -1)
1273                 BIO_set_nbio(cbio, 1);
1274
1275         rv = BIO_do_connect(cbio);
1276
1277         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1278                 {
1279                 BIO_puts(err, "Error connecting BIO\n");
1280                 return NULL;
1281                 }
1282
1283         if (req_timeout == -1)
1284                 return OCSP_sendreq_bio(cbio, path, req);
1285
1286         if (BIO_get_fd(cbio, &fd) <= 0)
1287                 {
1288                 BIO_puts(err, "Can't get connection fd\n");
1289                 goto err;
1290                 }
1291
1292         if (rv <= 0)
1293                 {
1294                 FD_ZERO(&confds);
1295                 openssl_fdset(fd, &confds);
1296                 tv.tv_usec = 0;
1297                 tv.tv_sec = req_timeout;
1298                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1299                 if (rv == 0)
1300                         {
1301                         BIO_puts(err, "Timeout on connect\n");
1302                         return NULL;
1303                         }
1304                 }
1305
1306
1307         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1308         if (!ctx)
1309                 return NULL;
1310
1311         for (;;)
1312                 {
1313                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1314                 if (rv != -1)
1315                         break;
1316                 FD_ZERO(&confds);
1317                 openssl_fdset(fd, &confds);
1318                 tv.tv_usec = 0;
1319                 tv.tv_sec = req_timeout;
1320                 if (BIO_should_read(cbio))
1321                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1322                 else if (BIO_should_write(cbio))
1323                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1324                 else
1325                         {
1326                         BIO_puts(err, "Unexpected retry condition\n");
1327                         goto err;
1328                         }
1329                 if (rv == 0)
1330                         {
1331                         BIO_puts(err, "Timeout on request\n");
1332                         break;
1333                         }
1334                 if (rv == -1)
1335                         {
1336                         BIO_puts(err, "Select error\n");
1337                         break;
1338                         }
1339
1340                 }
1341         err:
1342         if (ctx)
1343                 OCSP_REQ_CTX_free(ctx);
1344
1345         return rsp;
1346         }
1347
1348 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1349                         char *host, char *path, char *port, int use_ssl,
1350                         int req_timeout)
1351         {
1352         BIO *cbio = NULL;
1353         SSL_CTX *ctx = NULL;
1354         OCSP_RESPONSE *resp = NULL;
1355         cbio = BIO_new_connect(host);
1356         if (!cbio)
1357                 {
1358                 BIO_printf(err, "Error creating connect BIO\n");
1359                 goto end;
1360                 }
1361         if (port) BIO_set_conn_port(cbio, port);
1362         if (use_ssl == 1)
1363                 {
1364                 BIO *sbio;
1365 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1366                 ctx = SSL_CTX_new(SSLv23_client_method());
1367 #elif !defined(OPENSSL_NO_SSL3)
1368                 ctx = SSL_CTX_new(SSLv3_client_method());
1369 #elif !defined(OPENSSL_NO_SSL2)
1370                 ctx = SSL_CTX_new(SSLv2_client_method());
1371 #else
1372                 BIO_printf(err, "SSL is disabled\n");
1373                         goto end;
1374 #endif
1375                 if (ctx == NULL)
1376                         {
1377                         BIO_printf(err, "Error creating SSL context.\n");
1378                         goto end;
1379                         }
1380                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1381                 sbio = BIO_new_ssl(ctx, 1);
1382                 cbio = BIO_push(sbio, cbio);
1383                 }
1384         resp = query_responder(err, cbio, path, req, req_timeout);
1385         if (!resp)
1386                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1387         end:
1388         if (cbio)
1389                 BIO_free_all(cbio);
1390         if (ctx)
1391                 SSL_CTX_free(ctx);
1392         return resp;
1393         }
1394
1395 #endif